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The characteristics of tinnitus in workers exposed to noise
Luciara Giacobe Steinmetz1, Bianca Simone Zeigelboim, Adriana Bender Lacerda
1Programa de Mestrado e Doutorado em Distúrbios da Comunicação, Universidade Tuiuti do Paraná.
Unlabelled:
Tinnitus is a common auditory complaint among individuals exposed to noise.
Aim:
this paper aims to study the characteristics of tinnitus in workers exposed to noise.
Study Design:
this is a descriptive prospective study.
Materials And Method:
Fifty-two individuals averaging 29 years of age were enrolled in a hearing loss prevention program at a meat processing plant. The participants were interviewed and had their hearing tested in 2005 and 2006.
Results:
seventy-one percent of the participants were found to have normal hearing. Tinnitus was present in 16% of the males and in 9% of the females. Mean noise exposure length was 7 years and noise levels ranged from 86 to 91 dBA (48%). Bilateral tinnitus (46%) of the hissing type (40%) and moderate intensity (49%) was the most prevalent. Symptoms began to be observed within one to five years after initial exposure to noise (67%) and manifested themselves in weekly episodes (41%) that bothered the patients mostly at night (34%). A significant correlation was observed between the frequency of tinnitus episodes and the noise levels to which workers were exposed.
Conclusion:
tinnitus should be included in hearing loss prevention programs in order to more comprehensively promote occupational hearing health.
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